Improvement in transom-lifters



l. F. WULLENSAK.

' Transum-Lifters. -N0,l48,538 I PatentedMarch10.1874.

UNITED STATES.

JOHN n. woLLENsAK, on cnIcAco, ILLINOIS.

|MPRovEMENT IN TRANsoM-LJFTEVRS..

Specification forming part of Letters Patent No. 148,538,1lated March l0, 1874; application tiled February 14, 1874.

CAsn B.

To all whom it may concern:

Be it known that I, JOHN F. WOLLENSAK, of Chicago, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Transom-Lifters; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings forming part of this specication, in which- Figure 1 is a side elevation, and Figs. 2 and 3 views of part-s in detail.

Similar letters of reference in the accompanying drawings denote the same parts.

This invention is an improvement upon my patent dated March 11, 1873, No. 136,801, in which provision was made against the bending of the long upright rod or handle of the transom-lifter by the weight of the sash at the point where it was jointed to the lifting-arm connected to the side or edge of the sash, this being accomplished by prolonging the upright rod above the point ot' junction of the liftingarm, and providing said upright rod witha friction-roller at the point of junction, said roller bearing against the wall and helping to sustain the weight of the sash.

rlhe object of the present invention is to provide means for supporting the upright rod against the bending pressure of the sash, when the latter is hinged at its bottom, and at the same time prevent the breakage of glass in the transom in case the latter is allowed to fall suddenly. It also has for its object to provide improvedmeans for connecting the lifting-arm to the transom. To these ends, the invention consists, iirst, in jointing the lifting-arm to its operating rod or handle at the upper end of the latter; and in providing the operating rod or handlewith a socket at or near its junction with the lifting-arm, said .socket sliding on a stationary upright rod attached to the wall; secondly, in interposing a spiral spring on the stationary rod between the sliding socket andthe upper guide-bracket of the operating-rod in such manner as to sustain the weight of the sash when it is lowered, and prevent any sharp concussion when the .transom falls suddenly, and, iinally, in a bayonet-joint connecting the lifting-arm to the .bracket on the transom, said joint being formed by a tongue on the end of the bracket and a corresponding slot in the socket on the arm, the parts being so arranged that they cannot be disconnected in any part of the arc described by the transom when the liftingarm is attached to the operating-rod, all of' which I will now proceed to describe.

In the drawings, T is thev transom-sash, pivoted or hinged, in the present instance, at

its lower edge; L, the lifting-arm, that connects the sash to the upright rod; U, the upright rod, passing through two guides, G G', both of which are located below the junction ofthe rods L U, the guides G being provided with a set-screw, s, arranged to hold the rod U at any point desired. The upright U, instead of being prolonged at its upper end above its junction with the lifting-arm, as in my former patent, terminates at that point, and is provided at the front with ears c, to which the lifting-rod is pivoted, and at the rear with a socket, S, which incloses and slides upon a stationary upright rod, U. The latter is supported at its lower end, below the socket S, by the bracket composing the guide G of the rod U, and at its upper end by a bracket, B. I represents a spiral spring, inclosing the rod U between the socket S and the guide G.

It will be seen that the weight of the sash is supported equally by the rods U U and their brackets, and cannotbend either. When the sash is lowered until the socket S comes in contact with the upper end of the spring I,

its weight is sustained by the latter vertically;

con sequently, when the sash is allowed, through carelessness, to fall suddenly, the spring relieves the shock, which would otherwise occur, and prevents damage to the glass. The lift ing-arm L is attached to the bracket B of the transom-sash by a bayonetjoint, J, the end of the arm having a socket, j, with a slot, j', and the bracket having a piu or bearing, k, with a tongue, le', adapted to enter the socket and its slot When the tongue and slot are in line. The latter parts are so arranged,y however, that they cannot come in line in any portion of the are described by the bracket B in the operation of the transom, so that the arm and bracket cannot be disconnected while in working position.

The advantages resulting from these improvements are obviousthe spring guading against any liability of breaking the glass, and the joint faeilitatingthe connection of the liftin g-arnl to the bracket of the sash.

In heavy transoms, I propose to employ the devices described at each end of the sash, making it doubly secure against accident.

Having thus described my invention, What I claim as new isl. The stationary upright rod U', supported by brackets Gr' B, and provided with a spiral spring, I, in combination with the movable upright rod U, having the socket S arranged at or near the junction of the rod U and lifting-arm L, substantially as described, for the purpose specified.

2. The lifting-arm L, having the socket j and slot j', in combination with the transverse bracket B, having the pin or bearing k and tongue kf, arranged and operating substantially as and for the purpose specied.

JOHN F. WOLLENSAK. Witnesses: CHARLES ABEL, J r., INGoLF K. BAYESEN. 

